Dynamic block – Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD User Manual

Page 45

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Operating the Module

Chapter 6

6-2

The dynamic block contains 34 words as follows:

Words 1 thru 34 of the dynamic block are identified by the mnemonics

TDC01 thru TDC34 in ProSet 700 software.

Word Bits

Description

1

0-15

Block Identification Code Ċ 1000 1000 0000 1010 (880A

16

)

2

0

LoopĆ1 Enable

0 = Loop 1 disabled.

1 = Loop 1 enabled if PID control mode selected (bits 7-8, word 2, config block).

1

LoopĆ1 Auto/Manual Mode Select

0 = Loop 1 is in the manual mode Ċ the manual output value (from word 5) is used as the CV value.

1 = Loop 1 is in the automatic mode Ċ the PID algorithm generates the CV value.

2

LoopĆ1 SetĆPoint Select

0 = Select the standbyĆtemperature setĆpoint value from word 3.

1 = Select the runĆtemperature setĆpoint value from word 4.

3

LoopĆ1 AutoĆTuning Enable

0 = Disable autoĆtuning.

1 = Enable autoĆtuning Ċ autoĆtuning can be invoked by an offĆtoĆon transition of bit 1 of word 34.

4

Always = 0.

5

LoopĆ1 PID Integral Term Reset Enable

0 = Accumulate PID integral term.

1 = Reset the PID integral term on the 0ĆtoĆ1 transition, and then allow accumulation until the next 0ĆtoĆ1 transition.

6-15

Not used.

3

0-15

LoopĆ1 Standby Temperature SetĆpoint Value Ċ Used when bit 2 of word 2 is off (0 thru 999.9



).

4

0-15

LoopĆ1 Run Temperature SetĆpoint Value Ċ Used when bit 2 of word 2 is on (0 thru 999.9



).

5

0-15

LoopĆ1 Manual Output Value (CV) Ċ Used when bit 1 of word 2 is off (-100.00 thru +100.00).

Dynamic Block

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